Multiple control system



6 Sheets-Sheet 1 H. R. BRAND ET AL MULTIPLE CONTROL SYSTEM Filed Feb. 28, 1953 `uly 6, 1937.

, July 6, 1937. H. R. BRAND ET Al.

MULTIPLE CONTROL SYSTEM I6 Sheets-Sheet 2 Filed Feb. 28, 1955 a DS mw RF. BA Y E OYL N MRR RA WAH n mH A www@ July 6, 1937. H. R. BRAND ET A1.

MULTIPLE CONTROL SYSTEM Filed Feb. 28, 1933 6 Sheets-Sheet 3 BY CHARLES A.F/\USEL g! i 1 ATTORNEY INVENToRs HARRY R.BRAND July 6, 1937 H. R. BRAND ET AL 2,085,949

MULTIPLE CONTROL SYSTEM Filed Feb. 28, 1933 6 Sheets-Sheet 4 l. Il.

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. INVENTORS (E) HARRY R. BRAND BY CHARLES A FAUSEL M ATroRNl-:Y

July 6, 1937. H. R. BRAND ET AL 2,085,949

MULTIPLE CONTROL SYSTEM Filed Feb. 28, 1953 6 Sheets-Sheet 5 /37 2 8 [62. IBO 173 mvENToRs HARRY R. BRAND BY CHARLES A FAUSEL MA1-roma! July 6, 1937. R. BRAND AL 2,085,949

MULTIPLE CONTROL SYSTEM File`d Feb. 28, 1955 6 Sheets-Sheet 6 Frigo d 79 /74 SZ 92 A1703) 29e l A209005) J I *7m/65) 1] /new 1 f. 20550; /l Imi. V

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INVENToRs HARRY R. BRAND Y CHARLES RFAUSEL M ATroRNEY Patented July 6, 1937 MULTIPLE coN'rnoi. SYSTEM Harry Russell Brand, New York, N. Y., vand Charles A. Fausel, Glen Ridge, N. J.; said Fausel assignor to said Brand Application February 28, 1933, Serial No. 658,950 7 Claims. (Cl. 1944) The present invention relates to the control of automatic machinery for preparing or producing commodities and has for an object to provide a system in which the initiation of a performance or the continuation of operation of a. machine may be controlled by remotely situated manually operated means.

Our invention is particularly adapted for use with automatic machines for preparing and deshowing the completed key operation;

Fig. is a view, in elevation, of the mechanism shown in Fig. 1 with certain parts removed, and certain parts in the act of being restored to their normal position;

Fig. 6 is a view in vertical section taken on the line 6-6 of Fig. 1 with certain partsremoved;

Fig. 7 is a view in vertical section taken substantially on the line 1-1 of Fig. 1 and with certain parts removed;

10 livering portions of food on order, such for ex- Fig. 8 is a view in front elevation of a conample as shown in Patent No. 1,848,104, issued trolling mechanism hereinafter termed a "se- March 8, 1932. The machine described in said lector; patent is adapted to be controlled from a single Fig. 9 is a plan view of the selector with cerordering station, such as the cashiers desk of a tain parts removed;

l5 restaurant. The present invention has for an Fig. l0 is an enlarged detail view in side eleobject to provide for the control of a machine vation of a part of the selector; from a. plurality of independent stations. Thus, Fig. 1l is an end elevation of the selector, as as applied to a restaurant, our invention contemviewed from the lefthand side of Fig. 8, and partplates the provision of manually operable order 1y in section;

transmitting means at a, plurality of convenient Fig. 12 is a plan view of a token used in and by locations in the restaurant and preferably at the selector; each customers place, whereby a Waiter or pref- Fig. 13 is an enlarged fragmental view looking erably the customer himself may transmit an in the direction of the arrow I3 ot Fig. 11 and order to the machine. showing a token disk and certain coacting mecha- Another object is to provide means for preventnism;

ing the transmission of another order from the Fig. 14 is an enlarged fragmental view in secsame station until the transmitting device has tion taken on the line H--II oi Fig. 11; been reset by means not readily accessible to the Fig. 15 is a diagrammatic view of electric circustomer. cuits and related devices; and

Another object is to provide means which will Fig. 16 is an enlarged detail view of a portion identify the station from which the order was of Fig. 13 but showing certainv parts in another sent. Thus in a preferred embodiment of our inposition. vention an identifying means, such as a token, The specific embodiment of our invention chois issued in response to each order transmitted, sen for illustration, comprises a plurality of key the token bearing indicia identifying the point 0f operated mechanisms-hereinafter referred to as origin of the order, so that when the commodity ordering keys, and a selector controlled by has been prepared the token Will indicate where the ordering keys, preferably through electrothe commodity is to be delivered. mechanical means. The selector in turn controls Another object is to provide means whereby the the operation of a commodity preparing and deidentifying means thus issued will directly 00nlivering machine, hereinafter referred to as the trol the operation of the commodity preparing producer, The producer may comprise any machine. suitable machine which will prepare commodities Another object is t0 provide means Which Will in response to electric order impulses, and hence indicate substantially the Sequence in which the it is not illustrated in full in the drawings but is orders are transmitted. Further objects of the indicated in the diagram Fig, 15 by remain iminvention will appear in the following descrip- .pulse receiving parts amd- 3,150 certain delivery tion, which with the accompanying drawings, ilrelease parts. lustrates one embodiment of the invention, and When an ordering key is operated an impulse r thereafter the novelty and scope of the invenis transmitted to the selector which is preferably "o tion will be pointed out in the claims. located near the producer. The impulse causes In the accompanying drawings: a token identifying said ordering key to be Figure 1 is a view in elevation, with cover reissued into a hopper within the selector. From moved, of an ordering station key mechanism; the hopper the token is automatically picked up r Fig. 2 is a plan view of the key shown in Fig. 1; and passed through the selector to a container "5 Fig. 3 is a view, in elevation, of the mechanism and in its passage through the selector it closes shown in Fig. 1, with certain parts removed, and a control circuit of the producer, thereby enshowing the key fully depressed; tering an order in said producer. A number Fig. 41s a view, in elevation, of the mechanism of tokens may be issued simultaneously because shown in Fig. 1, with certain parts removed and their release is controlled at the will of the operators at a pluralityfof stations, and their issue at best will be irregular, but they will be picked out of the hopper at fixed minimum intervals and substantially in the sequence in which the ordering keys are depressed, and they will be piled up in the container in the order in which they pass through the selector. Since the or- ,ders transmitted to the producer by the passage of the tokens from the hopper to the container may take place at a higher rate than the producer may operate to iill them, the producer is preferably provided with an accumulator which will store the orders and deliver them to the machine at fixed minimum intervals. The producer is also preferably of the type in which the commodities, as they are produced, are passed into a closed chamber from which they can be taken out only by the operation of token-controlled mechanism. Suitable signalling means indicate when there is an order in the chamber ready for delivery. An operator may then withdraw the lowermost token from the container and use it to obtain the commodity from said chamber and the indicia on the token will indicate to what station the order is to be delivered.

A typical producer with Which our control system has been used is fully illustrated and described in our copending application Serial No. 644,736, filed November 28, 1932, now Patent Number 2,033,178 and for convenience of reference certain parts shown in Fig. which correspond to parts of said producer are marked with reference numerals and characters partly in parentheses, the parenthetical portions being the numbers or characters used to represent such parts in said copending application.

Having given above a brief outline of our invention as illustrated in the embodiment chosen for illustration, we may now proceed to a more detailed description.

Ordering key Referring to Figs. 1 and 2 the ordering key comprises a stem having a key 2| fixed thereto. The stem projects from and is slidably mounted in a casing 22, having a cover 23. The casing is adapted for support on a counter or like restaurant fixture with the key visible and accessible to the customer and the waiter. A slot 24, see also Fig. 6, formed in the casing 22, and a headed stud fixed to the latter and freely embraced by a slot 26 in the stem 20, serve to guide said stem. A spring 21, under tension, one end of which is anchored to the casing 22 and the opposed end suitably xed to the stem 29, serves to return the key to normal position after it is actuated in a manner and for a purpose hereinafter described. The stud 25 cooperates with the opposed ends of the slot 26 to desirably limit the movementsof the stem 20.

A bar 28, see particularly Fig. '1, having a series of teeth 29 formed on one edgethereof, is

suitably mounted adjacent to the stem 20 for reciprocating movements in cooperation with the latter. A shouldered stud 30 xed to the bar 28 is adapted to move freely in and be guided by a slot 3| in the stem 20. A slot 32 in the bar 28 embraces the stud 25 and together with the stud 30 and the slot 3| serves to guide the bar 28. A spring 33, under tension, anchored at one end to the stud 30 has its opposed end attached to the stem 20, and is adapted to cause a relative movement between the bar 28 and the stem 20, and also to hold the said bar and stem in fixed relation, when desired.

Rotatably mounted on a stud journalled in the casing 22, see particularly Fig. '1, is a lever 4| having an elbow 42 protruding through an opening in the casing 22, said lever has at its opposite end a tooth 43 adapted for cooperation with a notch 44 in the stem 20. A spring 45, see Fig. 1, under tension, is both suitably attached to the lever 4| and anchored to the casing 22 and is adapted to restore the lever 4| when it is manually operated as is hereinafter described. Fixed on the stud 40 (see Fig. '1)

4and adjacent to the lever 4| is a bell-crank 46 of which one arm 4-1 has, suitably fastened thereto, one end of a spring 48 under tension, the opposed end being anchored to the lever 4 The arm 41 has a tooth 49 formed thereon adapted to engage a notch 50 in the bar 28, when desired. An arm 5| of the bell-crank 46 isV cooperatively adjacent to a lug 52 of the lever 4|, both serving to maintain desired relations between the bell-crank 46 and the lever 4|.

Rotatably mounted at 59 on the casing 22, is a lever 60 having formed thereon a tooth 6| and a tooth 62, and having a weighted portion 63. The teeth 6| and 62 are operatively adjacent to the teeth 29 of the bar 28 and are so relatively placed with respect to each other and to the pivoted center 59 as to act in the manner of an escapement release for the bar 28, as hereinafter described.

Fixed to the casing 22, Figs. 3 and 4, is a bracket 10 carrying blocks 1| and 12 of electric insulation. Fast to block 1| is a spring blade 13 in electrical contact, on its fixed end, with one leg 14 of a transmission circuit andvbearing at is free end a contact point 16. Fast to the block 12, and electrically insulated from the blade Operation of the ordering key To transmit an order impulse to the selector the key 2l is depressed until stopped by the abutment of the stud 25 and the opposed end of the slot 26. As the stem 20 nears the end of its stroke, the tooth 43 of the lever 4|, under impulse of the spring 45, engages the notch 44, thus latching the stem 20 and preventing its immediate return under impulse of the spring 21. Thus the full depression of the key 2|, and the consequent movement of the lever 4|, permits the partial rotation of the bell-crank 46, under impulse of the spring 48, and the tooth 49 is Withdrawn free of the notch 50, thereby releasing the bar 28 which, under impulse of its spring 33, is carried to the limit of its stroke in the direction taken by the depressed stem 20. During this movement of the bar 28 the prong 82 operatively rides along the cam surface 88 and face 8|, forcing the spring blade 11 towards the spring blade 13 and causing contact between the points 19 and 16. The relative position of the spring blades 11 and 13 and their exure under pressure results in a desirable wiping contact and a closing of the transmission period and maintain a closed circuit for a desired interval, the movement of the released bar 28 is suillciently slowed down by a virtual braking action resulting from the escapement coaction between the teeth `29 and the teeth 6I and 62 of the weighted lever 60. The full travel of the bar 28 will carry the prong 82 clear of the face 8|, thus permitting the return of the spring blades 13 and 11 to their normal, inactive position and thereby breaking the transmission circuit which remains open until the next depression of the key.

The desired functions having been performed, the key 2| may be returned to its initial position in the following manner. Suitable pressure on the elbow 42 will partially rotate the lever 4I, and thus disengage the tooth 43 from the notch 44, effecting the release of the stem 20, which under impulse of the spring 21 returns the key 2| to its initial and operative position. The return movement of the stem 20 carries the bar 28 to its initial position, the coaction of stud 30, the opposed face of slot 3| and the spring 33 in part effecting this return. The tooth 49 engages the notch 50 of the bar 28 and the latter is thus under operative restraint. During the return of the bar 28, the prong 82 inoperatively passes to the rear of the faces 80 and 8| of the blade 11, and rests in actuating position at the completion of the key restoring performance. The escapement movement hereinbefore described also acts as a brake to govern the speed of the return of the key. The ordering key is preferably mounted at the rear edge of a counter or table with only the key proper projecting above the surface of the counter so that the part 42 of the reset lever lies below the level of the counter where it is not readily accessible to the customer.

The selectofr Referring now particularly to Figs. 8, 9 and 11, the selector has a grid 90 supported on a, suitable frame 9|. This grid provides a mounting for a set of solenoids or electromagnets 92 which correspond in number to the ordering keys described above. In other words there is a solenoid in the transmission circuit of each key, which solenoid is energized by depression of said key. Each solenoid or electromagnet has a plunger 93 which `is magnetically actuated to eject a token 94, as will be explained hereinafter.

One of the tokens is illustrated in Fig. 12 and it will be observed that it is marked with a numeral identifying a particular ordering key. There is a distinctive token marking for each key and a suitable quantity of tokens bearing each marking.

Operatively adjacent to each solenoid 92, and

detachably fixed relative thereto and on the base 90, is a container 95, preferably tubular, supported substantially in a vertical position and adapted to freely store a suitable number of the tokens 94 bearing the distinctive marking of the key controlling said solenoid. The upper end of said container is open to facilitate charging it with tokens, and the lower end is partially closed by a recessed piece 96. In the side of the container 95 adjacent to the solenoid 90 and just above the piece 96, there is a slot 91 to receive an ejector blade |00, and in the opposed side of the container there is a slot 98. The lower edge of this slot is flush with the top face of the end piece 96, and the slot forms an opening slightly wider than the thickness of a token 94 but less than double the thickness thereof. The length of the slot 98 is such as to permitfree passage of a token therethrough, when desired.

The ejector blade (see particularly Fig. 11) is hinged to the free end of an arm I0| pivoted at |02 on a bracket |03, xed relative to the solenoid 92. A spring |04, under tension, serves to flexibly `maintain the blade |00 against a guiding surface |05 of the base 90, cooperatively placed relative to the slot 91.

'The plunger 93 is adjustably fastened to a slotted head ||0 pivoted -on the arm |0|. A` tail II| of said arm bears against the plunger 93 to limit the swing of the arm in a clockwise direction (as viewed in Fig. 11) under the urge of a spring ||2. 'Ihus the blade is normally held just clear of the lowermost token in the container 95.

Referring to Fig. 15, ||6 is a source of electric current with conductors I1 and I I8 leading from opposite poles thereof. The leads 18 from the ordering keys are connected to the conductor I8 while the leads 14 are connected through the respective solenoids to the conductor ||1. Thus whenever the points 16 and 19 of an ordering key are contacted, the solenoid 92 associated with that particular ordering key will be energized, giving an impulse to its plunger 93. Such movement of the plunger swings the arm IOI on its pivot, causing the blade |00 to eject the lowermost token 94 in the container through the slot 98 and clear of the supporting piece 96. A token next above the ejected one rests on the uppermost portions of the piece 96, the blade |00 being depressed in the recess of the said piece, and upon the full return of the blade, this token has its edge opposed to the edge of said blade.

The lower ends of the containers (Figs. 8 and 11) are exposed to a chute |25 suitably enclosed and leading toI a hopper |26. The latter is substantially semi-circular in the plane |4,-|4, and is tapered at its lower edge (see also Figs. 13 and 14) being partially enclosed on its inner side by a plate |28. This plate |28 has a large substantially circular opening therein with a portion of the periphery of the circle stepped radially inward to form a shield |29. The purpose of this shield will be explained hereinafter.

Adapted for clock-wise rotation (as viewed in Fig. 14) and fast to a shaft |34 is a disk |35 which lies back of the plate |28 and substantially closes the opening therein. Openings |31 are formed through the disk |35 at suitable angular intervals and in such -location that they will pass back of the shield |29 as the disk is rotated. The openings |31 are each of a size to pass a token 94 freely therethrough. The disk |35 is preferably of substantially the same thickness as the tokens and it is inclined from the vertical plane, as shown in Fig. 11, so that tokens dropping into the hopper will slide along the face of said disk.

The shaft |34 (see particularly Fig. 11) which carries said disk is suitably journaled in a frame |38. Fixed upon said shaft is a worm gear |39 adapted to be driven by a worm |40 on a shaft 4| also journaled in the frame |38. The shaft |4I is driven by a motor |42. A plate |46 to which are fixed the frame |38 and the motor |42, is supported by members |41 and |48 fast thereto and carried on brackets |49 and |50 mounted on the main frame 9| and by members I 5| and |52 also fast to the plate I46and carto freely revolve between the plate |28 and the plate |46. An aperture |60 (see Figs. 13 and 14) in the plate |46, suitably larger than a token 94, isvlsopi/aced as to be passed by the openings |31 during rotation of the disk |35. Fast to the rear face of the plate |46 is a chute |6| with an open side |62 in register with the aperture |60, and angularly'disposed to a vertical container |63 iixed on the frame 9|. Both said chute and container are adapted to carry freely the tokens 94, and are relatively so placed as to transmit and receive, respectively, the said tokens, as is hereinafter described.

Fixed to the frame 9| and to the lower end of container |63 is a base (see Figs. 8 10 and 13) composed of a pair of vertically spaced plates |66 and |68. The upperv plate |66 of the pair is formed with an opening therethrouglsubstantially of a size equal to the bore of said container and in alignment therewith. Between the plates |66 and |68 is an ejector plate |69 pivotally mounted at |10 and provided with an opening |1| adapted to receive altoken. A bell crank |12 pivoted at |13, has a horizontally projecting arm |14 and a slotted vertical arm |15 whichembraces a pin |16 projecting from the ejector |69. A spring 11, under tension, is suitably mounted to give partial rotationto the bell crank |12 and to the ejector |69. A slot |18 (Fig. 13) in the ejector |69 coacting with a pin |19 fixed in the plate |68 serves to limit the motion of the said ejector and the connected bellcrank under impulse of the spring |11. The arm |14 is adapted for manual operation of the bell crank |12 against the tension of the spring |11.

A cup (Fig. 1l) is desirably placed adjacent to the ejector |69 for a purpose hereinafter described. Means are further prov ided to operate the producer by a released token and to that end there is provided a detector device comprising in part (see Figs. 13, 14 and 16) a stud |8| fixed in a bracket |82 mountedon the plate |46. Pivoted on the stud |8| is a lever 83, one end of which has fastened thereto a spring |84 under tension. The opposite end of the lever is adapted to serve as a detent.

Coacting with the lever |83 and adjacent thereto is a. bell-crank also pivoted on the stud |8|. This bell crank lever has an arm |86 whichv is resiliently connected to the lever |83 by the spring |84. An arm |81 of the bell crank-f |85 carries a pin |88 fast thereto. This pin coacts with the lever 83 to maintain a desired relation between the lever |83 and the bell crank |85, the spring |84 cooperating.

The free end of the arm |81 passes through a slot |9| in the plate |46 and is suitably placed for registering with the openings |31. A pin |92, fast. to the plate |46, carries one end of a spring |93, under tension, the opposed end being fast to the arm |86. The spring |93 acts to keep the end |90 of the arm |86 in pressure contact with the rotating disk |35, tending to pass through the openings |31 when presented thereto.

Pivoted on the plate |46 at |96 (see Figs. 13 and 14) is a lever |91. A spring 98 under tension, is attached at one end tol thelever and at the other to the plate |46. A roller |99 suitably mounted on the lever |91 projects freelythrough alined openings 200 and 20| formed respectively in the plates |46 and |28. Operatively placed for coaction' with the roller |99, are cams 202 formed on the periphery of the disk |35 and disposed in predetermined relation to the openings |31. These cams serve to force the roller |99 outward while an opening |31 is approaching registry with the slot |9| but they release the roller when registry is established to permit partial rotation oi the lever |91, under the urge of the spring |98. But normally the lever |91 cannot respond appreciably to the pull of said spring because the adjacent end of the lever |83 stands in its way, as shown in Fig. 13.

A spring blade 205 having a contact point 206 on its free end isiixed to a block 201 of insulating material iixedly mounted `on the plate |46. On the block 201 is also fastened a spring blade 208, the free end of which carries a contact point 209 electrically insulated from the blade 205. A roller 2|0 suitably mounted on the lever |96 is adapted to coact with the blade 205 in a manner to cause pressure between the contact points 206 and 209 when the lever |96 is partially rotated, as will be described hereinafter.

The lead wires 2| 2 and 2 |3 respectively connect with the conductors ||1 and ||8, see also Fig. 15, and the solenoid 2 |5 (248) is so connected in the line as to be energized when the contact points 206 and 209 close the circuit by pressure of one upon the other.

Referring again to Figs. 13 and 14,v at 2 5 of the lever |91,is pivoted one end of a link 2|6 the opposed end of which has pivoted connection to an arm 2 1 oi a bell-crank 2 I8 rotatably mounted at 2|9 on the plate |46. The arm 220 of the bell-crank 2|8 has suitably connected thereto a depending rod 22| attached to the feeding lever 222 (see also Fig. 8) of a counter 223 carried on a bracket 224 fixed to the frame 9|.

The selector device may be suitably enclosed to prevent unwarranted access to the tokens and mechanism contained therein.

Operation of the' selector As previously described the depression of a key stem 20 to its extreme limit closes a circuit through a certain one of the solenoids 92 which results in a downward movement, of the plunger 93. A partial rotation is given the arm |0| and the consequent thrust of the blade |00 ejects a single opposed token 94. This token drops into the chute |25 and thence is guided into the hopper |26, the token, finally bearing against the face of the disk |35, owing to a desirable inclination of the latter.

T he motor |42 constantly rotates the disk |35 during the period of service of the equipment, and in due course the token drops into an opening |31. vThus the token is picked and carried up by the disk. As the token is carried along by the disk it passes back of the shield |29 and then engages the end |90 of the arm |86. The arm 86 is thus swung outward and through its spring connection with the lever |83 swings the latter clear of the lever |91, as shown in Fig. 16. Since at the same time the roller |99 has cleared one of the cams 202 the lever 91 is now swung on its pivot kby its spring |98 and the roller 2|0 causes the point 206 to electrically contact with the point 209, thereby closing the circuit which energizes the order magnet or solenoid 2 I5 (248) of the producer. A further rotation of the disk |35 carries the token to the aperture |60 in the plate |46 land the token is discharged, by gravity into the chute |6| and nally comes to rest in the container |63. Pressure on the arm |14 of the bell-crank |12 causes the ejector |69 to deposit the token in the cup |80 where it is accessible to the operator.

Through the coaction of the connected mechanism, link 2|6, bell-crank'2l8 and the rod 22|,

the movement of the lever |91 will cause the counter 223 to register an order.

The manually ejected token may be used to release the prepared commodity from the delivery chamber of the producer by inserting said token in the token-controlled mechanism 230 (650) graphically illustrated in Fig. 15 and also described in the copending application hereinbefore referred to.

While we have described a preferred embodiment of our invention it will be understood that this is to be taken as illustrative and not limitative and that we reserve the right to make such changes in form, construction, and arrangement of parts as fall within the spirit and scope of the following claims.

We claim:

' 1. The method of controlling from a plurality of o rder stations a machine adapted to produce commodities in response to order impulses and to deliver the commodities into a closed chamber adapted to be opened by a token, said method comprising the steps of transmitting order impulses at will from said order stations to a central station, issuing tokens at said central station identifying the stations from which the orders are sent, segregating the tokens and arranging them' substantially in the sequence in which the orders are received and by such segregation and arrangement relaying the order impulses to the machine, and thereafter using the tokens successively to release the commodities from the token controlled chamber.`

2. In a multiple control system for a machine adapted to prepare commodities in response to order impulses and to deliver the same into a token-controlled chamber, a central station, a

plurality of independently operable transmitters, each adapted to transmit an order impulse to the station, means at the station for relaying to the machine control impulses corresponding to said order impulses, a token identifying each transmitter at said station, and means actuable by each order impulse for issuing one of said tokens identifying the origin of the order impulse, each token being adapted for use in said token controlled chamber to release a commodity therefrom.

3. In a multiple control system for a machine adapted to prepare commodities in response to order impulses and to deliver the same into a token controlled chamber, a receiving station, a relay at said station, a plurality of independently operable transmitters, each adapted to transmit an order impulse to the machine through said relay, a token identifying each transmitter at said station, means actuable by each order impulse received at the relay for issuing the token identifying the transmitter sending the impulse, each token being adapted for use in said token conf-` trolled chamber to release a commodity therefrom.

4. A multiple control system for a machine adapted t o produce commodities in response to order impulses. and having token controlled means for releasing commodities produced, said system'comprising a plurality of order stations, a receiving station, a plurality of tokens at the receiving station for identifying the order stations respectively and for operating said token controlled means, means controlled by each ordering station for issuing a token at the receivfrom which the tokens may be removed to opcrate said token controlled means.

5. In combination a machine adapted to prepare commodities in response to order impulses, a plurality of order stations, a relay station, means operable at will at each order station for transmitting control impulses to the relay station, means at the latter station for relaying order impulses sequentially to the machine at time intervals not shorter than a predetermined minimum and in response to the control impulses from the order stations, and means at a central point controlled by said control impulses for identifying the stations from which the control impulses were transmitted and substantially the sequence of transmittal of said control impulses, so as to indicate to which stations the commodities are to be delivered and the sequence of such deliveries.

6. In combination a machine adapted to prepare commodities in response to order impulses, a plurality of order stations, a central station, means at each order station operable at will to transmit a control impulse to the central station, means at the central station operable inresponse to each impulse received to discharge E a token identifying the order station from which the impulse was transmitted, means at the central station for relaying order impulses sequentially to the machine at time intervals not shorter than a predetermined minimum and in response to the impulses fromthe order stations, and means for keeping the tokens discharged substantially in the order in which the control impulses are received at the central station, so that the discharged tokens will not only designate the stations to which the commodities produced by the machine are to be delivered but will' also indicate by the order of the tokens the order of such deliveries. y

7. In combination a machine adapted to prepare commodities in response to order impulses, a plurality of order stations, a. central station, means at each order station operable at will to transmit a control impulse to the central station, means at the central station for issuing a token in response to each impulse received, each token identifying the order station from which the impulse was transmitted,means for segregating the tokens issued and discharging them at time intervals not shorter than a predetermined minimum, means comprising a relay operated by each token as it is being discharged to transmit an order impulse to said machine, and means for keeping the discharged tokens substantially in the order in which the control impulses are received at the central station, so that the discharged tokens will not only designate the stations to which the commodities pro-A HARRY RUSSELL BRAND. CHARLES A. FAUSEL. 

